Oswald assmann



(No Model.) E

r O. ASSMANN. BINDER FOR LOOSE SHEETS OF PAPER.

N0. 561,932. Patented June 9, 1896.-

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OSYV'ALD ASSMANN, OF TEGELEN, NETHERLANDS.

BINDER FOR LOOSE SHEETS OF PAPER.

SPECIFICATION forming part of Letters Patent No. 561 ,932, dated June 9,1896.

Application filed A t 21, 1895. $eria1N0.560,054. (No model) Patented inGermany January 15, 1395,1To. 82,364, and in England July 15,1895,lie-13,583-

To all whom it may concern.-

Be it known that I, OSW'ALD ASSMANN, a subject of the Queen of theNetherlands; and a resident of Tegelen, Netherlands, have invented newand useful In) provements in Binders for Loose Sheets of Paper, (forwhich I have obtained patents in Germany,No. 82,364., dated January 15,1895, and in England, No. 13,583, dated July 15, 1895,) of which thefollowing isa specification.

The present invention has for its object a binder for loose sheets ofpaper, such as letters, and it permits of an easy access to anyindividual sheet, so that the said sheet may be removed from the filewith the greatest facility or replaced in the same or any other order.

In the accompanying drawings, Figure 1 shows a binder in a sectional endelevation with binding-needles crossing each other in half-open stateready for the inspection of the leaves. Fig. 2 shows a modification ofthe binding-needles going into each other, one being hollow to receivethe other in its tube. Fig. 3 is an end elevation of the binder closed.Fig. sis aplan view. Fig. 5 shows the binder in half-open position withthe leaves turned to the right andv to the left, and Fig. 6 shows thebinder fully open with the binding-needles apart to allow the leaves tobe withdrawn The binder is composed of two jaws A and B, hinged togetherat O, and being provided with curved needles D D, which either crosseach other, as in Fig. l, or pass one into the other, as shown in Fig.2.

The jaw A is provided with a frame composed of the bars CL and c and ofthe lateral arms Z2 andv d, which frame is hinged thereto, so as toswing around the bar a, the motion being limited by stops e and f,laterally projecting from both ends of the jaw A. A spring wound uponthe bar a, presses with one end upon the bar 0, and thus gives to theframe the tendency to press downward and to lean with the arms 1) clagainst the stops f. The other jaw, B, is provided at either end with aprojection 72, bent in anysuitable manner so as not to interfere withthe parts of the jaw A. The jaws may be made solid, of

wood or of any other material, or may be hollow-for instance, be bent ofsheet metal, as shown in the drawingsand holding the binding-needlessecured thereto by any convenient means of attachment. tions it areprovided with notches 7i, adapted to receive the bar a when the binderis open, thus checking a further opening and holding the binder in thestate shown. in Figs. 1 and 5. The needles in this position do not allowthe removal of any of the sheets without tearingthe same, though an easyinspection of all the leaves is possible.

If it is desired to withdraw sheets or to place new ones, it is onlynecessary to lift the bar 0 in the direction of the arrow, Fig. 5, so asto be free from the notches h, whereby the arms I) and cl strike againstthe projections e 6. Then it is easy to turn the binder into theposition Fig. (3, so that any one of the sheets retained therein may bewithdrawn or fresh sheets may be pushed upon the points of the needles Dor D to be bound in by closing the binder. The front edge of theprojections h is suitably curved so as to allow the bar 0 to glideupward when the binder is closed and to fall into the notches 7t 7t, andfurther to glide upon the body of the jaw 13 when the binder is fullyclosed, as indicated by Fig. 3.

Having thus described my invention, what I claim is A binder composed oftwo jaws hinged together, and carrying the curved binding-needles, onejaw having a spring-actuated swinging frame, and the other notchedprojections to receive the outer bar of said swinging frame for holdingthe binder in a half-open position, substantially as described and forthe purpose set forth.

In testimony that I claim the foregoing as my invention I have signed myname, in pres ence of two witnesses; this 2d day of July, 1895.

OSYVALD ASSMANN.

Witnesses:

J. MULLER, L. ESSER.

The projec-

